The budget package that House Democrats hope to approve this week endorses the idea of a federal pay freeze next year, but rejects any of the changes in the federal retirement system proposed by the Senate's budget version.

Under the Senate plan, federal and postal workers and those getting civilian or military retirement benefits (including Social Security) would not get any raises next year. In addition, the Senate budget would raise employe contributions to the federal retirement program from 7 percent to 9 percent.

The budget House Democrats hope to agree on makes no changes in the cost-of-living adjustments due civilian-military retirees and would not change the retirement contribution. The proposed budget also recommends a 2 percent reduction each year for the next three years in federal employment. The Senate plan calls for a 4 percent decrease in each of the next three years.

The Democratic budget plan calls for a "substantial" decrease in government efforts to turn over civil service jobs to the private sector. Whether this cut in contracting out work is based on current or future contracts is unclear.

Like the Republican Senate plan, the tentative Democratic version of the budget expects that federal workers would get a 3.8 percent pay raise in January 1988 and 4.7 percent in 1989.

When the full House approves a budget -- sometime next month, according to the timetable -- the civil service portion of it will be referred to the House Post Office-Civil Service Committee for action. The civil service section of the budget approved by the Senate will go through the same process with its Governmental Affairs Committee.

The House and Senate will have to agree on a compromise package to fund the government for the fiscal year that begins in October. SES Directory

One of the best ways to sell books to people is to mention their names in them. With that in mind, the Public Affairs Press and the Senior Executive Association hope to sell at least 7,000 copies of the biographical directory that the former plans to publish.

The directory will include information on the 7,000 members of the government's Senior Executive Service, who will be able to buy the $135 book at an early-order discount of $85. It is scheduled to be published later this year. Letters about the directory have gone out to all SES members. Edgar Morgan, formerly executive director of the Consumer Product Safety Commission, is in charge of the project. Job Mart

The Fish and Wildlife Service needs a supervisory management analyst, GM (merit pay) 15, and a purchasing agent, GS 6. Call Joyce Bryant at 343-6106.

The Public Health Service in Bethesda wants a medical librarian, GS 9. Call Dean Wiles on 496-6924. The Social Security Administration in Arlington needs word processing equipment operators, GS 2/3/4. There are full-time and part-time openings. Call 235-8591.

The Labor Department is looking for an interpreter for the deaf, GS 5/7/9, to work part time. Call Jane Love at 523-6656.

Office of Justice Programs needs a program analyst, GS 9/11; print media editor, GS 5/7, and clerk-typist or personnel clerk, GS 4. Call Sharon May at 724-7725.