How to Write a Performance Review for a Developer in English

Writing a developer performance review is one of the most consequential writing tasks an engineering manager does. A well-crafted review provides clear, honest, specific feedback — supporting the developer’s growth, informing compensation decisions, and creating a fair legal record. This guide covers the full structure, vocabulary, and phrases for writing professional developer performance reviews in English.

What Makes a Good Performance Review?

A good developer performance review is:

Specific — references concrete examples, not vague impressions
Evidence-based — cites work, pull requests, incidents, projects
Balanced — acknowledges strengths and areas for improvement
Actionable — gives clear development guidance, not just evaluations
Forward-looking — includes goals for the next period, not only a retrospective

“The performance review is not a surprise — it should summarise and formalise ongoing feedback conversations, not introduce new information.”

Performance Review Structure

Section 1: Overall Performance Rating

Start with the summary rating. Most companies use a 4- or 5-level scale:

Level	Example labels
Exceeds expectations	”Exceeds”, “Outstanding”, “Exceptional”
Meets expectations	”Meets”, “Successful”, “Effective”
Partially meets	”Developing”, “Below expectations”, “Needs improvement”
Does not meet	”Unsatisfactory”, “Significant concerns”

Useful phrases for each level:

Exceeds expectations:

“Alex consistently exceeds expectations across all dimensions. His technical contributions were outstanding this half — he delivered the new authentication service two weeks early, mentored two junior engineers, and produced the most impactful on-call improvements of any engineer on the team.”

Meets expectations:

“Maria delivers reliably against her commitments and consistently meets team and company standards. She executed well on the payments migration project and has grown her incident response skilsl significantly.”

Partially meets:

“Daniel has made progress in some areas, but his performance in the current period did not consistently meet expectations. Specifically, code quality and communication of technical decisions have been areas of concern, as detailed below.”

Section 2: Technical Performance

Assess technical skills with concrete evidence.

Delivery and execution

“[Name] delivered [X] features / projects on time this [quarter/half]. [He/She/They] estimates well and communicates blockers proactively.”

“[Name] struggled with delivery consistency this period — three of four committed features slipped. We’ve discussed root causes and agreed on improvement actions.”

Code quality

“[Name]‘s code is consistently well-structured, thoroughly tested, and easy to understand in review. Pull requests are rarely sent back with major issues.”

“Code quality has been inconsistent. Reviews frequently require significant revisions, and several bugs were introduced that could have been caught with more thorough unit testing.”

Technical depth and problem-solving

“[Name] demonstrates strong technical judgment — she independently identified and resolved a critical performance bottleneck in the checkout service that had been affecting P99 latency for months.”

“[Name] is building his technical depth in backend systems. He applies patterns well from existing code but is still developing the ability to reason from first principles on novel problems.”

Section 3: Communication and Collaboration

This section covers teamwork, documentation, async communication, and meetings.

Strong communication:

“[Name] communicates clearly and proactively. She writes detailed design documents that drive effective team decisions, gives clear status updates, and asks for help at the right time — neither too early nor too late.”

Communication needing improvement:

“[Name] tends to go quiet when blocked — updates become infrequent, and the team sometimes learns about delays late. We’ve discussed proactive communication as a priority for the next half.”

Cross-team collaboration:

“[Name] is an effective collaborator with product and design. He translates technical constraints clearly without overwhelming non-technical stakeholders.”

Section 4: Impact and Ownership

Assess whether the developer shows initiative, goes beyond their explicit tasks, and takes responsibility.

Strong ownership:

“[Name] is the de facto owner of our observability stack. Without being asked, she identified gaps in our alerting coverage, proposed improvements, and drove them to completion — reducing MTTR for production incidents by 30%.”

Developing ownership:

“[Name] executes assigned work reliably but is still developing the ability to identify and drive improvements proactively. The next step for her growth is to take ownership of a full system component end-to-end.”

Section 5: Growth and Learning

Note how the developer learns, adapts, and develops over time.

“[Name] has shown impressive growth this period. He joined the team with limited experience in distributed systems — he’s now our most reliable engineer on Kafka-related problems.”

“[Name] has strong fundamentals but has been slow to build new skills outside her comfort zone. For the next half, we’ve agreed she will lead a project using [new technology/area] to expand her range.”

Section 6: Leadership and Mentoring (for senior engineers)

“[Name] is a trusted mentor to junior engineers. She provides thoughtful code review, shares knowledge proactively in team channels, and has helped three engineers significantly grow their skills.”

“As a senior engineer, [Name] is expected to take a stronger role in influencing team practices. This is an area for development — he tends to focus on his own work rather than raising the overall engineering standard.”

Section 7: Goals for Next Period

Every review must end with forward-looking goals.

Structure for goals:

Be specific and measurable
Link to the developer’s career level expectations
Set 2–4 goals, not 10

Example goals:

“Technical deepening: By [date], lead the design and implementation of [specific project], including owning the architecture document and running the design review.”

“Communication: Establish a practice of weekly status updates in [channel] for any work extending beyond 2 days. Proactively communicate blockers within 24 hours.”

“Mentoring: Take ownership of onboarding the next junior engineer joining the team, including running their first-week technical sessions.”

Language Patterns to Know

Rating language: strong positive

“consistently exceeds…”, “outstanding contribution to…”, “exceptional quality in…”
“is among the strongest performers in the team at…”
“proactively identifies and addresses…”
“drives significant impact beyond their direct responsibilities”

Rating language: standard positive

“reliably delivers…”, “meets expectations in…”, “grows consistently in…”
“executes well on…”, “demonstrates solid skills in…”

Rating language: development areas (constructive, not harsh)

“has room to grow in…”
“an area for development is…”
“we’ve discussed [behaviour] as a priority to improve”
“does not yet consistently meet the bar for [level] in…”
“the next step for [name]‘s growth is…”

Avoiding vague language

Vague	Specific
”Alex is a hard worker"	"Alex delivered 3 out of 4 committed features this quarter and worked through a critical incident response on a Friday evening"
"Maria communicates well"	"Maria writes clear design documents and provides proactive status updates — never waiting to be asked"
"Daniel needs improvement"	"Daniel’s PR reviews require significant revision on average — we’ve discussed investing more in upfront design before writing code”

Practice

Strengthen your management vocabulary with the Engineering Manager English exercise set and the Engineering Manager learning path.